\input{../pic/ds3-ch2-1-lx-5.tex}

../pic/ds3-ch2-1-lx-5.tex

\input{../pic/ds3-ch2-1-lx-7.tex}

../pic/ds3-ch2-1-lx-7.tex

\input{../pic/ds3-ch2-2-1.tex}

../pic/ds3-ch2-2-1.tex

\input{../pic/ds3-ch2-2-3.tex}

../pic/ds3-ch2-2-3.tex

\input{../pic/ds3-ch2-2-4.tex}

../pic/ds3-ch2-2-4.tex

\input{../pic/ds3-ch2-2-5.tex}

../pic/ds3-ch2-2-5.tex

\input{../pic/ds3-ch2-2-6.tex}

../pic/ds3-ch2-2-6.tex

\input{../pic/ds3-ch2-2-7.tex}

../pic/ds3-ch2-2-7.tex

\input{../pic/ds3-ch2-2-letters.tex}

../pic/ds3-ch2-2-letters.tex

\input{../pic/ds3-ch2-2-numbers.tex}

../pic/ds3-ch2-2-numbers.tex

\input{../pic/ds3-ch2-2-tickets.tex}

../pic/ds3-ch2-2-tickets.tex

\input{../pic/ds3-ch2-5-zuhe-pailie.tex}

../pic/ds3-ch2-5-zuhe-pailie.tex

\input{../pic/ds3-ch2-7-xi-shu.tex}

../pic/ds3-ch2-7-xi-shu.tex

\input{../pic/ds3-ch2-7-yang-hui-san-jiao.tex}

../pic/ds3-ch2-7-yang-hui-san-jiao.tex

\input{../pic/ds3-ch3-2-coin.tex}

../pic/ds3-ch3-2-coin.tex

\input{../pic/ds3-ch3-3-2.tex}

../pic/ds3-ch3-3-2.tex

